Abstract:Jinchiling gold deposit is a typical quartz vein type gold deposit in northern Zhaoyuan city in Jiaodong area. Structures are the most important ore controlling factors for gold deposit. On the basis of previous data and comprehensive analysis of ore-controlling characteristics, structural ore controlling regularity has been summarized as follows: veins have the characteristics of branch and composite, secondary veins with the trend of SN and NNE produced in the vein with the trend of NE, secondary vein with the trend of NE produced in the ore vein with the trend of NNE; thickness of ore body and the gold grade is negative correlation, deep secondary veins group appeared in the lower part of P4 vein; ore bodies enriched in changing positions of plunge angle and pitch direction, orebodies of P4 vein with the trend of SW enriched in the depth of -240m, plunge angle became greatly, and plunging direction changed from SW trend to NW trend. Finally, the plane and profile wave function of P4 vein have been established, and the deep forecast has been carried out.